CVE-2026-20126
Cisco Catalyst SD-WAN Manager Privilege Escalation Vulnerability
Description
A vulnerability in Cisco Catalyst SD-WAN Manager could allow an authenticated, local attacker with low privileges to gain root privileges on the underlying operating system. This vulnerability is due to an insufficient user authentication mechanism in the REST API. An attacker could exploit this vulnerability by sending a request to the REST API of the affected system. A successful exploit could allow the attacker to gain root privileges on the underlying operating system.
Weakness: CWE-648
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Catalyst SD-WAN Manager | Network & Security Management | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Catalyst SD-WAN Manager
Vendor advisory
cisco-sa-sdwan-authbp-qwCX8D4v
Cisco Catalyst SD-WAN Vulnerabilities
Cisco’s rating: Critical (advisory CVSS 9.8) · Published Feb 25, 2026 · updated Apr 22, 2026 (revision 1.3)
Bug IDs: CSCws33583 , CSCws33584 , CSCws33585 , CSCws33586 , CSCws33587 , CSCws93470
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from